1.25G Single Mode 20Km DDM | Single Fiber SFP Transceiver,1310nm Tx/1550nm Rx JHA5420D-35

Short Description:

1.25Gbp/s 20Km LC BiDi SFP Transceiver, Single Fiber, +3.3V, 1310nm Tx/1550nm Rx, FP-LD, Single-mode, DDM


Overview

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Features:                                              

1). Up to 1.25Gb/s Data Links 

2). Hot-Pluggable

3). Single LC connector

4). Up to 20 km on 9/125μm SMF

5). 1310nm FP laser transmitter 

6). 1550nm PIN photo-detector

7). Single +3.3V Power Supply

8). Monitoring Interface Compliant with SFF-8472

9). Maximum power dissipation <1W

10). Industrial /Extended/ Commercial operating temperature range: -40°C to 85°C/-5°C to 85°C/-0°C to 70°C Version available

11). RoHS compliant and Lead Free

Applications:

1). 1000Base-LX Ethernet

2). Metro/Access Networks

3). 1×Fibre Channel

4). Other Optical Links

Description:

JHA5420D-35 Transceivers are a high performance, cost effective module which have a single LC optics interface. They are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) and Digital diagnostics functions are available via the 2-wire serial bus specified in SFF-8472. The receiver section uses a PIN receiver and the transmitter uses a 1310 nm FP laser, up to 14dB link budge ensure this module 1000Base-LX Ethernet 20km application.

• Absolute Maximum Ratings

Parameter

Symbol Min. Typical Max. Unit
Storage Temperature

TS

-40

 

+85

°C

Supply Voltage

VCC

-0.5

 

4

V

Relative Humidity

RH

0

 

85

%

• Recommended Operating Environment:

Parameter

Symbol Min. Typical Max. Unit
Case operating Temperature Industrial

TC

-40

 

85

°C

Extended

-5

 

85

°C

Commercial

0

 

+70

°C

Supply Voltage

VCC

3.135

 

3.465

V

Supply Current

Icc

 

 

300

mA

Inrush Current

Isurge

 

 

Icc+30

mA

Maximum Power

Pmax

 

 

1

W

• Electrical Characteristics(TOP = -40 to 85°C, VCC = 3.135 to 3.465 Volts)

Parameter

Symbol Min. Typical Max. Unit Note
Transmitter Section:  
Input differential impedance

Rin

90

100

110

W

1

Single ended data input swing

Vin PP

250

 

1200

mVp-p

 

Transmit Disable Voltage

VD

Vcc – 1.3

 

Vcc

V

2

Transmit Enable Voltage

VEN

Vee

 

Vee+ 0.8

V

 

Transmit Disable Assert Time

Tdessert

 

 

10

us

 

Receiver Section:  
Single ended data output swing

Vout,pp

300

 

800

mv

3

LOS Fault

Vlosfault

Vcc – 0.5

 

VCC_host

V

5

LOS Normal

Vlos norm

Vee

 

Vee+0.5

V

5

Power Supply Rejection

PSR

100

 

 

mVpp

6

Note:

  1. AC coupled.
  2. Or open circuit.
  3. Into 100 ohm differential termination.
  4. 20 – 80 %
  5. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
  6. All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to 1.5MHz up to specified value applied through the power supply filtering network shown on page 23 of the Small Form-factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 14, 2000.

• Optical Parameters(TOP = -40 to 85°C, VCC = 3.135 to 3.465 Volts)

Parameter

Symbol Min. Typical Max. Unit Note
Transmitter Section:
Center Wavelength

λc

1270

1310

1600

nm

 

Spectral Width(RMS)

σRMS

 

 

4

nm

 

Optical Output Power

Pout

-9

 

-3

dBm

1

Extinction Ratio

ER

9

 

 

dB

 

Optical Rise/Fall Time

tr / tf

 

 

260

ps

2

Relative Intensity Noise

RIN

 

 

-120

dB/Hz

 

Total Jitter Contribution

TX Δ TJ

 

 

0.284

UI

3

Eye Mask for Optical Output Compliant with IEEE802.3 z (class 1 laser safety)  
Receiver Section:  
Optical Input Wavelength

λc

1530

1550

1570

nm

 

Receiver Overload

Pol

-3

 

 

dBm

4

RX Sensitivity

Sen

 

 

-23

dBm

4

RX_LOS Assert

LOS A

-40

 

 

dBm

 

RX_LOS De-assert

LOS D

 

 

-24

dBm

 

RX_LOS Hysteresis

LOS H

0.5

 

 

dB

 

General Specifications:
Data Rate

BR

 

1.25

 

Gb/s

 

Bit Error Rate

BER

 

 

10-12

 

 

Max. Supported Link Length on 9/125μm SMF@1.25Gb/s

LMAX

 

20

 

km

 

Total System Budget

LB

14

 

 

dB

 

Note

  1. The optical power is launched into SMF.
  2. 20-80%.
  3. Contributed total jitter is calculated from DJ and RJ measurements using TJ = RJ + DJ. Contributed RJ is calculated for 1×10-12 BER bymultiplying the RMS jitter (measured on a single rise or fall edge) from the oscilloscope by 14. Per FC-PI (Table 9 – SM jitter output, note 1), the actual contributed RJ is allowed to increase above its limit if the actual contributed DJ decreases below its limits, as long as the component output DJ and TJ remain within their specifi ed FC-PI maximum limits with the worst case specified component jitter input.
  4. Measured with PRBS 27-1 at 10-12 BER

• Pin Assignment

Diagram of Host Board Connector Block Pin Numbers and Name

32 

Diagram of Host Board Connector Block Pin Numbers and Names 

• Pin Function Definitions

Pin No

Name

Function

Plug Seq

Notes

1 VeeT Transmitter Ground

1

1

2 TX Fault Transmitter Fault Indication

3

 

3 TX Disable Transmitter Disable

3

2

4 MOD-DEF2 Module Definition

2

3

5 MOD-DEF1 Module Definition 1

3

3

6 MOD-DEF0 Module Definition 0

3

3

7 Rate Select Not Connected

3

4

8 LOS Loss of Signal

3

5

9 VeeR Receiver Ground

1

1

10 VeeR Receiver Ground

1

1

11 VeeR Receiver Ground

 

1

12 RD- Inv. Received Data Out

3

6

13 RD+ Received Data Out

3

6

14 VeeR Receiver Ground

3

1

15 VccR Receiver Power

2

1

16 VccT Transmitter Power

2

 

17 VeeT Transmitter Ground

1

 

18 TD+ Transmit Data In

3

6

19 TD- Inv. Transmit In

3

6

20 VeeT Transmitter Ground

1

 

Notes:

  1. Circuit ground is internally isolated from chassis ground.
  2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
  3. Should be pulled up with 4.7k – 10 kohms on host board to a voltage between 2.0V and 3.6V. MOD_DEF(0) pulls line low to indicate module is plugged in.
  4. Rate select is not used
  5. LOS is open collector output. Should be pulled up with 4.7k – 10 kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
  6. AC Coupled

• SFP Module EEPROM Information and Management

The SFP modules implement the 2-wire serial communication protocol as defined in the SFP -8472. The serial ID information of the SFP modules and Digital Diagnostic Monitor parameters can be accessed through the I2C interface at address A0h and A2h. The memory is mapped in Table 1. Detailed ID information (A0h) is listed in Table 2. And the DDM specification at address A2h. For more details of the memory map and byte definitions, please refer to the SFF-8472, “Digital Diagnostic Monitoring Interface for Optical Transceivers”. The DDM parameters have been internally calibrated.

Table 1. Digital Diagnostic Memory Map (Specific Data Field Descriptions)

 

43 

Table 2 - EEPROM Serial ID Memory Contents (A0h)

Data Address

Length

(Byte)

Name of

Length

Description and Contents

Base ID Fields

0

1

Identifier

Type of Serial transceiver (03h=SFP)

1

1

Reserved

Extended identifier of type serial transceiver (04h)

2

1

Connector

Code of optical connector type (07=LC)

3-10

8

Transceiver

 

11

1

Encoding

NRZ(03h)

12

1

BR, Nominal

Nominal baud rate, unit of 100Mbps

13-14

2

Reserved

(0000h)

15

1

Length(9um)

Link length supported for 9/125um fiber, units of 100m

16

1

Length(50um)

Link length supported for 50/125um fiber, units of 10m

17

1

Length(62.5um)

Link length supported for 62.5/125um fiber, units of 10m

18

1

Length(Copper)

Link length supported for copper, units of meters

19

1

Reserved

 

20-35

16

Vendor Name

SFP vendor name: JHA

36

1

Reserved

 

37-39

3

Vendor OUI

SFP transceiver vendor OUI ID

40-55

16

Vendor PN

Part Number: “JHA5420D-35” (ASCII)

56-59

4

Vendor rev

Revision level for part number

60-62

3

Reserved

 

63

1

CCID

Least significant byte of sum of data in address 0-62
Extended ID Fields

64-65

2

Option

Indicates which optical SFP signals are implemented(001Ah = LOS, TX_FAULT, TX_DISABLE all supported)

66

1

BR, max

Upper bit rate margin, units of %

67

1

BR, min

Lower bit rate margin, units of %

68-83

16

Vendor SN

Serial number (ASCII)

84-91

8

Date code

JHA’s Manufacturing date code

92-94

3

Reserved

 

95

1

CCEX

Check code for the extended ID Fields (addresses 64 to 94)
Vendor Specific ID Fields

96-127

32

Readable

JHA specific date, read only

128-255

128

Reserved

Reserved for SFF-8079

• Digital Diagnostic Monitor Characteristics

Data Address

Parameter

Accuracy

Unit

96-97 Transceiver Internal Temperature ±3.0 °C
98-99 VCC3 Internal Supply Voltage ±3.0 %
100-101 Laser Bias Current ±10 %
102-103 Tx Output Power ±3.0 dBm
104-105 Rx Input Power ±3.0 dBm

• Regulatory Compliance

The JHA5420D-35 complies with international Electromagnetic Compatibility (EMC) and international safety requirements and standards (see details in Table following).

Electrostatic Discharge(ESD) to the Electrical Pins MIL-STD-883EMethod 3015.7 Class 1(>1000 V)
Electrostatic Discharge (ESD)to the Single LC Receptacle IEC 61000-4-2GR-1089-CORE Compatible with standards
ElectromagneticInterference (EMI) FCC Part 15 Class BEN55022 Class B (CISPR 22B)VCCI Class B Compatible with standards
Laser Eye Safety FDA 21CFR 1040.10 and 1040.11EN60950, EN (IEC) 60825-1,2 Compatible with Class 1 laserproduct.


• 
Recommended Circuit
 45

SFP Host Recommended Circuit

• Mechanical Dimensions 

Mechanical Drawing

 

 56

JHA reserves the right to make changes to the products or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such products or information.

Published by Shenzhen JHA Technology Co., Ltd

Copyright © Shenzhen JHA Technology Co., Ltd

All Rights Reserved


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